1) A certain number of men can finish a piece of work in 100 days. If, there were 10 men less, it would take 10 days more for the work to be finished. How many men were there originally ? A) 82 B) 75 C) 100 D) 110 Answer: Option DExplanation:Originally, let there be $x$ men. Less men, More days (Indirect Proportion) $\therefore$ $(x-10):x::100:110$ $ (x-10)\times 110$ $=x\times 100$ $\Leftrightarrow 10x=1100$ $\Leftrightarrow x= 110$.
